<template>
  <el-container>
    <el-header height="220">
      <el-steps :active="curStep" simple>
        <el-step title="组卷配置" icon="el-icon-edit" />
        <el-step title="考试权限" icon="el-icon-lock" />
        <el-step title="补充配置" icon="el-icon-setting" />
      </el-steps>

      <el-button v-show="curStep !== 1" style="margin-top: 10px" @click="curStep--">上一步</el-button>

      <el-button v-show="curStep !== 3" style="float:right;margin-top: 10px" type="primary" @click="curStep++">下一步
      </el-button>
      <el-button v-show="curStep === 3" style="float:right;margin-top: 10px" type="primary" @click="addExam">提交
      </el-button>
    </el-header>

    <el-main>
      <!--设置试题信息-->
      <el-card v-show="curStep === 1">

        <el-radio-group
          v-model="makeModel"
          size="medium"
          @change="makeModelChange"
        >
          <el-radio :label="1" border>题库组卷</el-radio>
          <el-radio :label="2" border>自由组卷</el-radio>
        </el-radio-group>

        <span v-show="makeModel === 2" style="float: right;color: red;font-weight: bold">
          {{ '试卷总分：' + sumTotalScore }}</span>

        <!-- 题库组卷内容-->
        <div v-show="makeModel === 1" style="margin-top: 25px">
          <el-button icon="el-icon-plus" size="mini" @click="addBank">添加题库</el-button>

          <!--存放题目的信息-->
          <el-table :data="addExamQuestion" border style="margin-top: 10px">

            <el-table-column label="题库" width="155" align="center">
              <template slot-scope="scope">
                <el-select
                  v-model="scope.row.bankName"
                  clearable
                  placeholder="请选择题库"
                  style="margin-left: 5px"
                >
                  <el-option
                    v-for="item in allBank"
                    :key="item.questionBank.bankId"
                    :label="item.questionBank.bankName"
                    :value="item.questionBank.bankName"
                  />
                </el-select>
              </template>
            </el-table-column>

            <el-table-column label="单选题分数" align="center">
              <template slot-scope="scope">
                <el-input v-model="scope.row.singleScore" style="margin-left: 5px" />
              </template>
            </el-table-column>

            <el-table-column label="多选题分数" align="center">
              <template slot-scope="scope">
                <el-input v-model="scope.row.multipleScore" style="margin-left: 5px" />
              </template>
            </el-table-column>

            <el-table-column label="判断题分数" align="center">
              <template slot-scope="scope">
                <el-input v-model="scope.row.judgeScore" style="margin-left: 5px" />
              </template>
            </el-table-column>

            <el-table-column label="简答题分数" align="center">
              <template slot-scope="scope">
                <el-input v-model="scope.row.shortScore" style="margin-left: 5px" />
              </template>
            </el-table-column>

            <el-table-column label="操作" width="80" align="center">
              <template slot-scope="scope">
                <el-button type="danger" icon="el-icon-delete" circle @click="delBank(scope.row.bankId)" />
              </template>
            </el-table-column>

          </el-table>
        </div>

        <!-- 自由组卷内容-->
        <div v-show="makeModel === 2">
          <el-card>
            <h1>题目列表</h1>
            <el-button type="primary" icon="el-icon-plus" size="small" @click="showAddDialog">添加试题</el-button>

            <el-table :data="addExamQuestion2" border style="margin-top: 10px">

              <el-table-column
                type="index"
                label="序号"
                width="50"
              />

              <el-table-column label="题目内容" align="center">
                <template slot-scope="scope">
                  {{ scope.row.questionContent }}
                </template>
              </el-table-column>

              <el-table-column
                align="center"
                label="题目类型"
              >
                <template slot-scope="scope">
                  <span v-if="scope.row.questionType === 1">单选题</span>
                  <span v-else-if="scope.row.questionType === 2">多选题</span>
                  <span v-else-if="scope.row.questionType === 3">判断题</span>
                  <span v-else-if="scope.row.questionType === 4">简答题</span>
                </template>
              </el-table-column>

              <el-table-column label="单题分数" align="center">
                <template slot-scope="scope">
                  <el-input v-model="scope.row.score" style="margin-left: 5px" />
                </template>
              </el-table-column>

              <el-table-column label="操作" width="80" align="center">
                <template slot-scope="scope">
                  <el-button
                    type="danger"
                    icon="el-icon-delete"
                    circle
                    @click="delQuestion(scope.row.questionId)"
                  />
                </template>
              </el-table-column>
            </el-table>

          </el-card>
        </div>
      </el-card>

      <!--设置考试权限-->
      <el-card v-show="curStep === 2">
        <el-radio-group v-model="examAuthority" size="medium">
          <el-radio :label="1" border>完全公开</el-radio>
          <el-radio :label="2" border>需要密码</el-radio>
        </el-radio-group>

        <el-alert
          style="margin-top: 15px"
          :title="examAuthority === 1? '开放的，任何人都可以进行考试！' : '半开放的，知道密码的人员才可以考试！'"
          type="warning"
        />

        <el-input
          v-show="examAuthority === 2"
          v-model="examPassword"
          style="margin-top: 15px;width: 20%"
          type="password"
          show-password
          placeholder="输入考试密码"
        />
      </el-card>

      <!--设置考试信息-->
      <el-card v-show="curStep === 3">

        <el-form ref="examInfoForm" :model="examInfo" :rules="examInfoRules" label-width="100px">

          <el-form-item label="考试名称" prop="examName">
            <el-input v-model="examInfo.examName" />
          </el-form-item>

          <el-form-item label="考试描述" prop="examDesc">
            <el-input v-model="examInfo.examDesc" />
          </el-form-item>

          <el-form-item v-show="makeModel === 2" label="总分数" prop="totalScore">
            <el-input-number :value="sumTotalScore" :disabled="true" />
          </el-form-item>

          <el-form-item label="及格分数" prop="passScore">
            <el-input-number v-model="examInfo.passScore" :min="1" :max="parseInt(sumTotalScore)" />
          </el-form-item>

          <el-form-item label="考试时长(分钟)" prop="examDuration">
            <el-input-number v-model="examInfo.examDuration" :min="1" :max="120" />
          </el-form-item>

          <el-form-item label="考试开始时间" prop="startTime">
            <el-date-picker
              v-model="examInfo.startTime"
              style="margin-left: 5px"
              type="date"
              placeholder="考试开始时间"
            />
          </el-form-item>

          <el-form-item label="考试结束时间" prop="endTime">
            <el-date-picker
              v-model="examInfo.endTime"
              style="margin-left: 5px"
              type="date"
              placeholder="考试结束时间"
            />
          </el-form-item>

        </el-form>

      </el-card>
    </el-main>

    <el-dialog title="添加题目" :visible.sync="showQuestionDialog" width="80%" center>
      <el-row>
        <el-select v-model="queryInfo.questionType" clearable placeholder="请选择题目类型" @change="typeChange">
          <el-option
            v-for="item in questionType"
            :key="item.id"
            :label="item.name"
            :value="item.id"
          />
        </el-select>

        <el-select
          v-model="queryInfo.questionBank"
          clearable
          placeholder="请选择题库"
          style="margin-left: 5px"
          @change="bankChange"
        >
          <el-option
            v-for="item in allBank"
            :key="item.questionBank.bankId"
            :label="item.questionBank.bankName"
            :value="item.questionBank.bankName"
          />
        </el-select>

        <el-input
          v-model="queryInfo.questionContent"
          placeholder="题目内容"
          style="margin-left: 5px;width: 220px"
          prefix-icon="el-icon-search"
          @blur="getQuestionInfo"
        />
        <el-button type="primary" style="float: right" @click="addQuToFree">确认{{ selectedTable.length }}项</el-button>
      </el-row>

      <el-table
        ref="questionTable"
        v-loading="loading"
        highlight-current-row
        :border="true"
        :data="questionInfo"
        tooltip-effect="dark"
        style="width: 100%;margin-top: 25px;"
        @selection-change="handleTableSectionChange"
      >

        <el-table-column
          align="center"
          type="selection"
          width="55"
        />

        <el-table-column
          align="center"
          label="题目类型"
        >
          <template slot-scope="scope">
            <span v-if="scope.row.quType === 1">单选题</span>
            <span v-else-if="scope.row.quType === 2">多选题</span>
            <span v-else-if="scope.row.quType === 3">判断题</span>
            <span v-else-if="scope.row.quType === 4">简答题</span>
          </template>
        </el-table-column>

        <el-table-column align="center" label="题目内容">
          <template slot-scope="scope">
            <span class="quContent">{{ scope.row.quContent }}</span>
          </template>
        </el-table-column>

        <el-table-column
          align="center"
          label="难度"
        >
          <template slot-scope="scope">
            <span v-if="scope.row.level === 1">简单</span>
            <span v-if="scope.row.level === 2">中等</span>
            <span v-if="scope.row.level === 3">困难</span>
          </template>
        </el-table-column>

        <el-table-column
          align="center"
          prop="quBankName"
          label="所属题库"
        />

<!--        <el-table-column-->
<!--          align="center"-->
<!--          prop="createPerson"-->
<!--          label="创建人"-->
<!--        />-->

        <el-table-column
          align="center"
          label="创建时间"
        >
          <template slot-scope="scope">
            {{ scope.row.createTime }}
          </template>
        </el-table-column>
      </el-table>
      <!--分页-->
      <el-pagination
        style="margin-top: 25px"
        :current-page="queryInfo.pageNo"
        :page-sizes="[10, 20, 30, 50]"
        :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </el-dialog>

  </el-container>
</template>

<script>
import questionBankApi from '@/api/questionBank'
import question from '@/api/question'
import utils from '@/utils/utils'
import examApi from '@/api/exam'

export default {
  props: ['tagInfo'],
  // name: 'AddExam',
  data() {
    return {
      // 查询题目的参数
      queryInfo: {
        // 题目类型下拉款所选的内容
        'questionType': '',
        'questionBank': '',
        'questionContent': '',
        'pageNo': 1,
        'pageSize': 10
      },
      // 题目类型
      questionType: [
        {
          id: 1,
          name: '单选题'
        },
        {
          id: 2,
          name: '多选题'
        },
        {
          id: 3,
          name: '判断题'
        },
        {
          id: 4,
          name: '简答题'
        }
      ],
      // 当前的步骤
      curStep: 1,
      // 组卷模式
      makeModel: 1,
      // 添加考试题目信息(makeModel = 1的时候)
      addExamQuestion: [],
      // 所有题库信息
      allBank: [],
      // 添加考试题目信息(makeModel = 2 的时候)
      addExamQuestion2: [],
      // 所有题目的对话框
      showQuestionDialog: false,
      // 对话框中题目表格的加载
      loading: true,
      // 所有题目的信息
      questionInfo: [],
      // 所有题目的对话框中表格被选中
      selectedTable: [],
      // 所有题目总数
      total: 0,
      // 考试权限(1公开, 2密码)
      examAuthority: 1,
      // 考试密码(权限为2时的密码)
      examPassword: '',
      // 补充的考试信息
      examInfo: {
        'examId': '',
        'examDesc': '',
        'passScore': 0,
        'examDuration': 0,
        'startTime': '',
        'endTime': ''
      },
      // 补充的考试信息的表单验证
      examInfoRules: {
        examName: [
          {
            required: true,
            message: '请输入考试名称',
            trigger: 'blur'
          }
        ],
        passScore: [
          {
            required: true,
            message: '请输入通过分数',
            trigger: 'blur'
          }
        ],
        examDuration: [
          {
            required: true,
            message: '请输入考试时长',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  computed: {
    // 计算总分
    // eslint-disable-next-line vue/return-in-computed-property
    sumTotalScore() {
      if (this.makeModel === 2) {
        let score = 0
        this.addExamQuestion2.forEach(item => {
          score += parseInt(item.score)
        })
        return score
      }
    }
  },
  created() {
    // 一创建就改变头部的面包屑
    this.$emit('giveChildChangeBreakInfo', '添加考试', '添加考试')
    // this.createTagsInParent()
    this.getBankInfo()
  },
  methods: {
    // 向父组件中添加头部的tags标签
    // createTagsInParent() {
    //   let flag = false
    //   this.tagInfo.map(item => {
    //     // 如果tags全部符合
    //     if (item.name === '添加考试' && item.url === this.$route.path) {
    //       flag = true
    //     } else if (item.name === '添加考试' && item.url !== this.$route.path) {
    //       this.$emit('updateTagInfo', '添加考试', this.$route.path)
    //       flag = true
    //     }
    //   })
    //   if (!flag) this.$emit('giveChildAddTag', '添加考试', this.$route.path)
    // },
    // 获取所有的题库信息
    getBankInfo() {
      questionBankApi.getBankHaveQuestionSumByType({
        'pageNo': 1,
        'pageSize': 9999
      }).then((resp) => {
        if (resp.code === 20000) {
          this.allBank = resp.data.data
        } else {
          this.$notify({
            title: 'Tips',
            message: resp.message,
            type: 'error',
            duration: 2000
          })
        }
      })
    },
    // 删除当前需要去除的题库
    delBank(bankId) {
      this.addExamQuestion.forEach((item, index) => {
        if (item.bankId === bankId) this.addExamQuestion.splice(index, 1)
      })
    },
    // 添加题库组卷中的题库
    addBank() {
      this.addExamQuestion.push(
        {
          'bankName': '',
          'singleScore': 1,
          'multipleScore': 1,
          'judgeScore': 1,
          'shortScore': 1
        })
    },
    // 自由组卷时添加试题
    showAddDialog() {
      this.showQuestionDialog = true
      this.getQuestionInfo()
    },
    // 自由组卷时删除试题
    delQuestion(questionId) {
      this.addExamQuestion2.forEach((item, index) => {
        if (item.questionId === questionId) this.addExamQuestion2.splice(index, 1)
      })
    },
    // 题目类型变化
    typeChange(val) {
      this.queryInfo.questionType = val
      this.getQuestionInfo()
    },
    // 题库变化
    bankChange(val) {
      this.queryInfo.questionBank = val
      this.getQuestionInfo()
    },
    // 获取题目信息
    getQuestionInfo() {
      question.getQuestion(this.queryInfo).then((resp) => {
        if (resp.code === 20000) {
          this.questionInfo = resp.data.data
          this.total = resp.data.total
          this.loading = false
        } else {
          this.$notify({
            title: 'Tips',
            message: '获取题库信息失败',
            type: 'error',
            duration: 2000
          })
        }
      })
    },
    // 处理表格被选中
    handleTableSectionChange(val) {
      this.selectedTable = val
    },
    // 分页页面大小改变
    handleSizeChange(val) {
      this.queryInfo.pageSize = val
      this.getQuestionInfo()
    },
    // 分页插件的页数
    handleCurrentChange(val) {
      this.queryInfo.pageNo = val
      this.getQuestionInfo()
    },
    // 自由组卷中选中的题目添加进去
    addQuToFree() {
      this.selectedTable.forEach(item => {
        if (!this.addExamQuestion2.some(i2 => {
          return i2.questionId === item.id
        })) { // 不存在有当前题目
          this.addExamQuestion2.push({
            'questionId': item.id,
            'questionContent': item.quContent,
            'questionType': item.quType,
            'score': 1
          })
        }
      })
      this.showQuestionDialog = false
    },
    // 组卷模式变化
    makeModelChange() {
      this.$confirm('此操作将丢失当前组卷数据, 是否继续?', 'Tips', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.makeModel === 1 ? this.addExamQuestion2 = [] : this.addExamQuestion = []
      }).catch(() => {
      })
    },
    // 添加考试
    addExam() {
      utils.validFormAndInvoke(this.$refs['examInfoForm'], () => {
        if (this.addExamQuestion.length !== 0 || this.addExamQuestion2.length !== 0) {
          // 构造数据对象(考试信息)
          const exam = this.examInfo
          exam.totalScore = this.sumTotalScore
          exam.status = 1
          // 权限id设置
          exam.type = this.examAuthority
          if (this.examAuthority === 2) { // 考试密码
            if (this.examPassword === '') { // 当前用户选择了需要密码权限,但是密码为空
              this.$message.error('当前权限为需要密码,但是密码为空')
              return false
            }
            exam.password = this.examPassword
          }
          // 题库组卷模式
          if (this.makeModel === 1 && !this.addExamQuestion.some(item => item.bankId === '')) {
            console.log(this.addExamQuestion)
            const bankNames = []
            this.addExamQuestion.forEach(item => bankNames.push(item.bankName))
            exam.bankNames = bankNames.join(',')
            exam.singleScore = this.addExamQuestion[0].singleScore
            exam.multipleScore = this.addExamQuestion[0].multipleScore
            exam.judgeScore = this.addExamQuestion[0].judgeScore
            exam.shortScore = this.addExamQuestion[0].shortScore
            examApi.addExamByBank(exam).then((resp) => {
              if (resp.code === 20000) this.$router.push({ path: '/examManage/exam' })
            })
          } else if (this.makeModel === 2) { // 自由组卷模式
            // 题目id数组
            const questionIds = []
            // 题目成绩数组
            const scores = []
            this.addExamQuestion2.forEach(item => {
              questionIds.push(item.questionId)
              scores.push(item.score)
            })
            exam.questionIds = questionIds.join(',')
            exam.scores = scores.join(',')
            console.log(exam)
            examApi.addExamByQuestionList(exam).then((resp) => {
              if (resp.code === 20000) this.$router.push({ path: '/examManage/exam' })
            })
          } else {
            this.$message.error('请检查考试规则设置是否完整')
          }
        }
      }, '请检查考试规则设置是否完整')
    }
  }
}
</script>

<style scoped lang="scss">
@import "../../assets/css/teacher/addExam";
</style>
